Performance improvement of soft-switched PWM rectifiers with inductive load
- 17 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2, 1425-1430 vol.2
- https://doi.org/10.1109/pesc.1994.373871
Abstract
A new soft-switched AC/DC PWM power converter structure is presented. It is useful for current-fed inverters and PWM rectifiers. Typical applications are magnet power supplies, high-power AC motor drives and active power filters with magnetic energy storage. Soft switching is provided at the expense of a limited increase of the circuit complexity as compared to usual hard switching solutions. A discussion of the soft commutation process is presented. By a proper switching sequence, overvoltages across the power converter switches can fully be eliminated. Moreover, light-load operation can be achieved. Both typical limitations of soft-switched current-fed topologies are therefore overcome. Simulation and experimental results demonstrate the actual power converter capabilities.Keywords
This publication has 4 references indexed in Scilit:
- High frequency series resonant DC link power conversionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Soft-switched PWM converter with inductive DC filterPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1993
- PWM rectifier with low DC voltage ripple for magnet supplyIEEE Transactions on Industry Applications, 1992
- The resonant DC link converter-a new concept in static power conversionIEEE Transactions on Industry Applications, 1989